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630262340 = 22531513117
BaseRepresentation
bin100101100100010…
…000101001000100
31121220221122101122
4211210100221010
52242321343330
6142312413112
721422066351
oct4544205104
91556848348
10630262340
112a3848474
121570a7198
13a07630c6
145d9c3628
153a4e95e5
hex25910a44

630262340 has 12 divisors (see below), whose sum is σ = 1323550956. Its totient is φ = 252104928.

The previous prime is 630262313. The next prime is 630262343. The reversal of 630262340 is 43262036.

It can be written as a sum of positive squares in 2 ways, for example, as 167754304 + 462508036 = 12952^2 + 21506^2 .

It is not an unprimeable number, because it can be changed into a prime (630262343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15756539 + ... + 15756578.

It is an arithmetic number, because the mean of its divisors is an integer number (110295913).

Almost surely, 2630262340 is an apocalyptic number.

It is an amenable number.

630262340 is an abundant number, since it is smaller than the sum of its proper divisors (693288616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630262340 is a wasteful number, since it uses less digits than its factorization.

630262340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31513126 (or 31513124 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 630262340 is about 25105.0261899883. The cubic root of 630262340 is about 857.3808632973.

The spelling of 630262340 in words is "six hundred thirty million, two hundred sixty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 31513117 63026234 126052468 157565585 315131170 630262340